<template>
    <!--<span :endTime="endTime" :callback="callback" :endText="endText">-->
    	<span :endTime="endTime"  :endText="endText">
        <slot>
            {{content}}
        </slot>
    </span>
</template>
<script>
    export default {
    	name:'test3',
        data(){
           return {
            content: '',
           }
        },
        props:{
            endTime:{
                type: String,
                default :'1533052800'
            },
            endText:{
               type : String,
               default:'已结束'
            }
//          ,
//          callback : {
//              type : Function,
//              default :''
//          }

			
			
        },
        mounted () {
        	console.log(this.$router)
        	console.log(this.$router.options.routes)
        	console.log(this.$route)
          this.countdowm(this.endTime)
        },
        destroyed(){
        	console.log('test3组件销毁回调钩子触发');
        },
        
//      watch:{
	
			//TODO 这里监听route无效？？?是必须要在父组件才能监听吗 ??
			
//      	'$route'(to,from){
//      		console.log(to+'<=='+from);
//      		alert('watch监听路由器变化')
//      	}
//      },
        methods: {
           countdowm(timestamp){
            let self = this;
            let timer = setInterval(function(){
                let nowTime = new Date();
                let endTime = new Date(timestamp*1000);
                let t = endTime.getTime() - nowTime.getTime();
                if(t>0){
                    let day = Math.floor(t/86400000);
                    let hour=Math.floor((t/3600000)%24);
                    let min=Math.floor((t/60000)%60);
                    let sec=Math.floor((t/1000)%60);
                    hour = hour < 10 ? "0" + hour : hour;
                    min = min < 10 ? "0" + min : min;
                    sec = sec < 10 ? "0" + sec : sec;
                    let format = '';
                    if(day > 0){
                       format =  `${day}天${hour}小时${min}分${sec}秒`;
                    }
                    if(day <= 0 && hour > 0 ){
                       format = `${hour}小时${min}分${sec}秒`;
                    }
                    if(day <= 0 && hour <= 0){
                       format =`${min}分${sec}秒`;
                    }
                    self.content = format;
                    }else{
                      clearInterval(timer);
                      self.content = self.endText;
//                    self._callback();
                    }
                 },1000);
               }
//         ,
//             _callback(){
//             if(this.callback && this.callback instanceof Function){
//                   this.callback(...this);
//               }
//          }
        }
    }
</script>